Keyboard desk with guard board



FIG. 1 is a perspective view of the keyboard desk with guard board;

FIG. 2 is a front view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a rear side view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a right side view thereof.

The broken line showing of elements on the keyboard desk with guard board illustrate portions of the article and form no part of the claimed design. 

CLAIM The ornamental design for a keyboard desk with guard board, as shown and described. 